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Taiwan Semiconductor Corporation MBRS2045CT
- Part No.:
- MBRS2045CT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
MBRS2045CT.pdf
- Description:
- DIODE ARR SCHOTT 45V 20A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,885
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Product details
Overview
MBRS2045CT from Taiwan Semiconductor is a dual-die Schottky barrier rectifier in TO-263AB (D2PAK) package, rated for 20A average forward current, 45V repetitive peak reverse voltage, and 150A non-repetitive surge current; it delivers low forward voltage (0.65V max at 10A/25°C) and operates up to +150°C junction temperature, enabling high-efficiency power conversion in compact SMPS designs.
For engineers reviewing the MBRS2045CT datasheet, MBRS2045CT pinout, MBRS2045CT application, or MBRS2045CT equivalent, key selection criteria include its 45V VRRM, dual-common-cathode configuration, 1.5°C/W junction-to-case thermal resistance, and suitability for high-density DC-DC converter outputs where low conduction loss and fast switching are critical.
Technical Context
This device integrates two independent Schottky diodes in a single TO-263AB surface-mount package with common cathode connection, supporting synchronous rectification or dual-output configurations. Its guard ring structure provides overvoltage protection, and the matte tin-plated leads meet J-STD-002 solderability requirements.
The MBRS2045CT exhibits a maximum forward voltage of 0.84V at 20A/25°C and 0.72V at 20A/125°C, with reverse leakage limited to 100µA at 25°C and 15mA at 125°C - characteristics optimized for high-frequency switching topologies requiring minimal recovery loss and thermal stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum reverse blocking capability without breakdown; defines usable input/output voltage range in buck or flyback secondary-side rectification. |
| IF | 20 A - Continuous average forward current per diode; supports high-power adapter and server PSU output stages. |
| IFSM | 150 A - Peak non-repetitive surge current (8.3ms half-sine); withstands inrush and transient overload events in industrial power supplies. |
| VF @ 10A, 25°C | ≤0.65 V - Low conduction loss reduces heat generation and improves system efficiency above 90% in 12V–48V DC-DC converters. |
| RθJC | 1.5 °C/W - Efficient thermal path from junction to case enables direct heatsinking via PCB copper pour or external metal tab. |
| TJ max | +150 °C - Extended junction temperature rating allows operation in thermally constrained environments such as enclosed power modules. |
Pinout & Package
Package: TO-263AB (D2PAK), surface-mount, 3-terminal configuration with exposed metal tab for thermal and electrical connection (cathode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode 1) | Anode of first Schottky diode | Connects to transformer secondary or switch node; carries forward current during positive half-cycle. |
| Pin 2 (Anode 2) | Anode of second Schottky diode | Enables dual-output or interleaved rectification; electrically isolated anode terminals share common cathode. |
| Pin 3 / Tab (Cathode) | Common cathode terminal | Electrically and thermally connected to exposed metal tab; must be soldered to large copper area for thermal management and low-inductance return path. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 0.65 V max at 10A/25°C - directly reduces conduction loss by ~30% vs. comparable 60V Si diodes, improving full-load efficiency. |
| Guard ring overvoltage protection | Integrated edge termination structure - prevents premature avalanche failure under voltage transients, enhancing reliability in unregulated inputs. |
| Moisture sensitivity level 1 | Per J-STD-020 - no floor life limitation or bake requirement before reflow, simplifying SMT assembly logistics. |
| High surge current capability | 150 A IFSM - sustains repeated cold-start surges in 48V telecom PSUs without degradation. |
Applications
| Server Power Supply Output Rectification | Industrial DC-DC Converter Secondary Side |
|---|---|
Use Scenario: High-current, high-efficiency 12V/48V output stage in 1U server PSUs with tight thermal constraints. IC Role / Device Role / Timing Role: Dual-anode Schottky rectifier providing synchronous rectification with common-cathode return path. Use Value: 0.65V VF minimizes conduction loss at 20A, reducing heatsink size and enabling >94% efficiency at full load. |
Use Scenario: Isolated 24V-to-5V/3.3V DC-DC module in PLC backplanes requiring robustness against line surges. IC Role / Device Role / Timing Role: Primary secondary-side rectifier handling continuous 20A output with 150A surge tolerance. Use Value: 1.5°C/W RθJC allows direct thermal coupling to chassis, eliminating discrete heatsinks in space-constrained enclosures. |
| Telecom Adapter Front-End Rectification | Automotive On-Board Charger Auxiliary Supply |
Use Scenario: Universal-input (90–264VAC) 65W adapter with active PFC and LLC resonant output stage. IC Role / Device Role / Timing Role: Output rectifier for LLC secondary, operating at 100–500kHz with minimal reverse recovery loss. Use Value: Zero reverse recovery charge eliminates switching loss spikes, enabling stable operation without snubbers at high frequency. |
Use Scenario: 12V auxiliary supply derived from 400V battery in EV on-board chargers, subject to automotive temperature cycling. IC Role / Device Role / Timing Role: Input rectifier for isolated auxiliary flyback supplying gate drivers and MCU rails. Use Value: -55°C to +150°C operating range ensures startup at sub-zero ambient and sustained operation during under-hood thermal soak. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-MBR2045CT | Identical 20A/45V rating, same TO-263AB package, but RθJC = 1.6°C/W (slightly higher thermal resistance). | Valid for same SMPS and adapter use cases; requires marginally larger copper area for equivalent thermal performance. | Preferred when Vishay supply chain alignment or qualification history is required in automotive Tier-1 BOMs. |
| ON Semiconductor MBR2045CT | Same electrical specs and package; datasheet specifies 0.63V typical VF at 10A/25°C (0.02V lower than MBRS2045CT typical). | Drop-in compatible in all PCB layouts; minor VF advantage yields ~0.3% efficiency gain at light loads. | Select when optimizing for lowest possible light-load conduction loss in energy-efficient consumer adapters. |
Compared with VS-MBR2045CT and MBR2045CT, the MBRS2045CT offers identical voltage/current ratings and pinout, with a balanced trade-off between thermal resistance (1.5°C/W), surge capability (150A), and RoHS/halogen-free compliance - making it optimal for industrial and telecom systems prioritizing long-term supply stability and J-STD-020 Level 1 assembly simplicity.
Availability
MBRS2045CT is available at Aetrix Electronics and suitable for server power supplies, industrial DC-DC converters, and telecom adapters requiring stable component supply, consistent thermal performance, and J-STD-020 Level 1 moisture handling.
Supply support for MBRS2045CT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and power semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, computing, and communications markets since 1979.
The MBRS2045CT belongs to TSC's high-current Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability AC-DC and isolated DC-DC power conversion in thermally demanding applications.
FAQ
What is the maximum junction temperature rating for the MBRS2045CT?
The MBRS2045CT has a maximum junction temperature (TJ) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version N2103). This rating enables reliable operation in enclosed power modules and under-hood automotive auxiliary supplies where ambient temperatures exceed 85°C. Derating curves confirm usable current capacity down to 10A at 125°C case temperature, ensuring design margin across extended thermal profiles.
Does the MBRS2045CT have a common-cathode or common-anode configuration?
The MBRS2045CT uses a dual-diode common-cathode configuration, with Pin 1 and Pin 2 serving as independent anodes and the exposed metal tab (Pin 3) functioning as the shared cathode terminal. This layout is confirmed in the marking diagram and mechanical drawings of the TO-263AB package in the Taiwan Semiconductor datasheet. It supports parallel output rectification or dual-rail DC-DC designs without external wiring.
What is the forward voltage specification of the MBRS2045CT at full rated current?
At 20A forward current and 25°C junction temperature, the MBRS2045CT has a maximum forward voltage (VF) of 0.84V per diode, as specified in the Electrical Specifications table. At elevated temperature (125°C), VF drops to 0.72V max - a characteristic of Schottky diodes that improves thermal stability in high-power applications where self-heating would otherwise increase losses.
Is the MBRS2045CT RoHS and halogen-free compliant?
Yes, the MBRS2045CT is RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet (Version N2103). The molding compound meets UL 94V-0 flammability rating, and the matte tin-plated leads comply with J-STD-002 for solderability - confirming full environmental compliance for export and industrial deployment.
What packaging and reel quantity is available for the MBRS2045CT?
The MBRS2045CT is supplied in TO-263AB (D2PAK) package on tape-and-reel format, with 800 units per reel, as documented in the ORDERING INFORMATION section of the Taiwan Semiconductor datasheet. This standard packing supports automated SMT placement and is compatible with industry-standard pick-and-place feeders used in high-volume power supply manufacturing.
MBRS2045CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 45 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
MBRS2045CT FAQ
1.How can I place an order for MBRS2045CT through Aetrix?
Please submit a Request for Quotation (RFQ) for MBRS2045CT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MBRS2045CT reliable?
The price and inventory of MBRS2045CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MBRS2045CT is usually 5 days.
3.What payment methods are accepted for MBRS2045CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MBRS2045CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MBRS2045CT?
MBRS2045CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MBRS2045CT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MBRS2045CT?
For technical support, including MBRS2045CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MBRS2045CT requirements.
6.How does Aetrix verify that MBRS2045CT is sourced from the original manufacturer or authorized distributors?
All MBRS2045CT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MBRS2045CT meets industry standards.
7.What is the process for return or replacement of MBRS2045CT?
All MBRS2045CT units undergo pre-shipment inspection (PSI). If there is an issue with MBRS2045CT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MBRS2045CT part is unused and in its original packaging.
Return procedure for MBRS2045CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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